Weight-equalizer for harvesters.



No. 635,788. Patented Oct. 3|, I899.

J. MACPHAIL.

WEIGHT EQUALIZER FOR HARVESTERS.

(Application filed Sept. 2, 1898.)

(No Model.) 2 Sheets-Shee\l.

Patented Oct. 3!, I899,

J. MACPHAIL. v WEIGHT ElIUALIZER FOR HARVESTERS.

(Application filed Supt. 2, 1598.)

2 Sheets-Sheet 2.

(No Model.)

k m s 7 Nrrnn STATES JAMES MACPHAIL, OF BLUE ISLAND, ILLINOIS, ASSIGNORTO THE PLANO MANUFACTURING COMPANY, OF CHICAGO, ILLINOIS.

WElGHT-EQUALlZE R FOR HARVESTERS.

SPECIFICATION formingpart of Letters latent N 0. 635,788, dated October31, 1899. Application filed beptember 2, 1898. Serial No. 690,074. (Nomodel.)

To aZZ whom it may concern:

Be it known that I, JAMES MACPHAIL, a citizen of the United States,residing at Blue Island, in the county of Cook and State of Illinois,have invented certain new and useful Improvements in WVeight-Equalizersfor Harvesters, of which the following is a specification.

My invention relates particularly to har- IO vester weight-equalizers;and its object is to provide simple and efficient means for changing theposition of the drivers seat in an automatic manner upon the shifting oradjustment of the binding mechanism, whereby the equilibrum may bemaintained in the harvesting-machine.

In the drawings, Figure l is a side elevation of a portion of aharvester, showing my device attached thereto Fig. 2, a plan viewthereof; Fig. 3, adetail of a part thereof; Fig.

4., an elevation of a modified form of construction; Fig. 5, a rearelevation thereof, and Fig. 6 a side elevation showing a modified formof connection between the shifting-lever and seat.

The object of my invention being to shift the drivers seatsimultaneously with the movement of the binding mechanism, it is obviousthat a connection between the seat and 0 either the binding mechanismdirect or the adjusting-lever may be adopted. In Figs. 1 and 2 thedirect connection with the binder is shown, While in the remainingfigures connection is had with the adjusting-lever.

3 5 The elevator-frame 1 and the elevator-supporting frame 2 may be ofthe usual and wellknown construction and form no part of my presentinvention. Likewise any suitable mechanism for shifting the binder maybe employed; but for convenience I have illustrated a binder-shiftingmechanism which may be adopted. This mechanism may be clearly understoodfrom an examination of Fig. 5. A horizontal shaft 3 bears in suitable 5journals 43.116. 5 andis provided with a crankarm 6, on whose free endis secured the rod 7, which is connected to the binder at the under sideof the deckin any suitable manner. The shaft 3 is provided withalever-arm 8 within convenient reach of the driver and having the usualquadrant or sector 9 to hold the lever in adjusted position.

Upon the rail 10 of the harvester parallel bars 11 are pivotally mountedin bearings 12, which bars are preferably curved, as at 13, to givesuitable spring action. The seat 14 is mounted on the upper ends of thebars, all of which parts, owing to the pivotal mounting of the bars, arecapable of being shifted to a position on either side of the vertical.In the drawings the position forward of the vertical position as assumedby the bars is illustrated by dotted lines.

Upon the front portion of the elevatorframe 1 or in any other suitablelocation is mounted a shaft 15, having at one end a crankarm 16,connected bya link 17 with the binding mechanism. The other end of theshaft carries a crank-arm 18, connected to the seat 14 in a suitablemanner by means of a link or rod 19. Any other suitable actuatingmechanism between the binder and seat may be adopted which will causethe pivoted seat to be shifted orv rocked on its pivots.

It will be readily apparent from the description already given that amovement of the lever will shift the binder and that its movement willbe communicated simultaneously to the seat. Then the binder is adjustedforward on the machine, the seat will be shifted back to correspond, andthereby equalize the weight and maintain an equilibrium. When thebinder'is adjusted backward on the machine, the seat will be shiftedforward. It is obvious that other connections between the pivoted seatand the binder may be adopted without departing from the spirit andscope of my invention and claims.

In Figs. 4 and 5 is shown a modified form of construction in which thedirect connection between the binder and seat is dispensed with and aconnection made direct between the adj usting-lever 8 and the seat bymeans ofaconnectingrodorlink20. Othermethods of connecting the lever andseat may be adopted, such as the construction shown in Fig. 6, whereinthe seat is carried on one end of a support 21, whose lower end isattached to the upper end of the upright parallel bars 11. A slotted bar22 depends from the seat and receives a pin 23 on the lever-arm or on anarm or member connected thereto.

Although I have described more or less precise forms and details ofconstruction, I do not wish to be understood as limiting myself thereto,as I contemplate changes in form, the proportion of parts, and thesubstitution of equivalents, as circumstances may suggest or renderexpedient and without departing from the spirit of my invention.

I claim-'- 1. In aharvester, the combination, with the binder and itsshifting mechanism, of a seat, similar parallel bars supporting theseatupon their upper ends and pivoted on the harvester to rock in a verticalplane in the line of draft, said bars being curved at 13 in thedirection of such line of draft, and a connection between the shiftingmechanism and said seat.

2. In aharvester, the combination, with the binder, of similar parallelbars pivoted on the harvester to rock in a vertical plane in the line ofdraft, said bars being curved at 13 in the direction of such line ofdraft, a seat supported on the upper ends of said bars, a quadrantdevice, a connection between the quadrant device and the binder and aconnection between the seat and such device.

3. In aharvester,tl1e combination of bindershifting mechanism comprisinga shaft 3, a crank-arm 6, a rod 7 between the crank-arm and binder, alever 8 connected to the shaft,

similar bars 11 pivoted to the rail of the harvester to rock in avertical plane in the line of draft, a seat upon the bars, a shaft 15, acrank-arm 16 on the shaft, a connecting-rod 17 between the binder andarm 16, a crankarm 18 and a connecting-rod 19 between the seat and arm18.

at. In a harvester, the combination, with the binder and its shiftingmechanism, of the stationary seat-rail 10 of the harvester, a pair ofbearings 12 located on the rail, parallel bars 11 pivotally mounted insaid bearings and arranged in tandem in the line of draft of theharvester, said bars being straight at the lower portion but curved at13 at the upper portion, a seat on the top free ends of the bars and aconnection between said shifting mechanism and said seat. a

5. In a harvester, the combination of parallel pivoted bars 11 curved asat 13, a seat 14 thereon to rock in a vertical plane in the line ofdraft, binder-shifting mechanism comprising a shaft 3, crank-arm 6, rod7 connected thereto and to the binder, a lever-arm 8, a quadrant device9, a shaft 15 having crankarms 16 and 18, a connection 17 between thebinder and the arm 16 and a connection 19 between the seat and the arm18.

JAMES MAOPHAIL. \Vitnesses:

ALLAN A. MURRAY, L. E. SERAGE.

